Shaky

• (superl.) Full of shakes or cracks; cracked; as, shaky timber. • (superl.) Shaking or trembling; as, a shaky spot in a marsh; a shaky hand. • (superl.) Easily shaken; tottering; unsound; as, a shaky constitution; shaky business credit.
Found on http://thinkexist.com/dictionary/meaning/shaky/

shaky

shivering adjective vibrating slightly and irregularly; as e.g. with fear or cold or like the leaves of an aspen in a breeze; `a quaking bog`; `the quaking child asked for more`; `quivering leaves of a poplar tree`; `with shaking knees`; `seemed shaky ...
Found on https://www.encyclo.co.uk/local/20974

Shaky

Shak'y adjective [ Compar. Shakier ; superl. Shakiest .] 1. Shaking or trembling; as, a shaky spot in a marsh; a shaky hand. Thackeray. 2. Full of shakes or cracks; cracked; as, shaky timber....
Found on http://www.encyclo.co.uk/webster/S/80

Shaky

Shaky is slang for risky, precarious, dangerous, improbable, undependable.
Found on http://www.probertencyclopaedia.com/browse/ZSA.HTM
No exact match found